Clinch nut



FIG. 1 is a top plan view;

FIG. 2 is a front elevation;

FIG. 3 is a bottom plan view;

FIG. 4 is a right-side elevation;

FIG. 5 is a cross section taken along the line 5—5 in FIG. 1;

FIG 6 is a downwards perspective view; and,

FIG. 7 is an upwards perspective view. 

The ornamental design for a clinch nut, as shown and described. 